Event: Division 2

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Opponent Rating Result
Andrew P Willoughby 1733 ½ - ½
Jim A Arbuckle 1550 ½ - ½
Stephen W Berkley 1683 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1655 = (4966 + 400 * (0 - 0)) / 3)

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